Tone Mirror

Analyzes draft emails in Gmail/Outlook and shows tone indicators to prevent passive-aggressiveness.

As of June 2026, Tone Mirror has 1 users in the Communication category.

Usersdown 50.0 percent50.0%
1
1
Ratingno change0%
— reviews
Reviewsno change0%
Version
26.03.14.118
Manifest V3

History

3 snapshots

Tracking since Apr 18, 2026.

2.081.50.9199999999999999Apr 18, 2026Jun 15, 2026
View as table
DateUsersRatingReviewsVersion
Apr 18, 2026226.03.14.118
Apr 23, 2026226.03.14.118
Jun 6, 2026226.03.14.118
Now126.03.14.118

Permissions & access

Permissions
None declared
Host access
https://mail.google.com/*, https://outlook.live.com/*, https://outlook.office365.com/*, https://outlook.office.com/*

Screenshots

Tone Mirror screenshot 1

About

In remote work, we often don't realize our emails sound curt or angry until it's too late. Without face-to-face interaction, tone can be easily misinterpreted, leading to:

Unintended conflicts with colleagues
Damaged professional relationships
Stressful work environments
Time wasted clarifying miscommunications

Tone Mirror analyzes your email drafts in real-time and displays a simple visual indicator in the corner of your compose window:

😊 Green = Friendly: Your message has a warm, positive tone
😐 Yellow = Neutral: Your message is professional and balanced
😠 Red = Hostile/Aggressive: Your message may come across as angry or passive-aggressive

Features
Real-time Analysis: Analyzes tone as you type
Non-intrusive: Small, unobtrusive indicator in the corner
Multi-platform Support: Works with Gmail and Outlook
Privacy-focused: All analysis happens locally in your browser
No data collection: Your emails are never sent to external servers

How It Works
The extension uses advanced pattern matching to analyze various aspects of your email:

Detects common workplace passive-aggressive language:

"Per my last email" - Implies recipient didn't read previous message
"For future reference" - Condescending instruction
"Just a gentle reminder" - Impatient follow-up
"Thanks in advance" - Presumed compliance
"Looping in [manager]" - Power move/escalation
"I was confused..." - Feigned confusion to criticize
"Great start" - Backhanded compliment
And 10+ more patterns
Word Choice: Detects potentially hostile or friendly language

Punctuation: Identifies excessive exclamation marks or ALL CAPS

Sentence Structure: Analyzes message brevity and abruptness

Overall Tone: Combines multiple factors with weighted scoring for accurate assessment

Technical

Version
26.03.14.118
Manifest
V3
Size
24.3KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
bnoffdclhnpblnfnlbkomnkhebbeekpf
Developer ID
u990a2fa971fa444b923fc3fbf4b20f21
Developer Email
[email protected]
Created
Jan 25, 2026
Last Updated (Store)
Mar 14, 2026
Last Scraped
Jun 15, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 15, 2026.